The document introduces PageRank, an algorithm developed by Larry Page for ranking web pages. It discusses the motivation for developing PageRank to bring order to the unstructured web. It provides an overview of how PageRank models the random surfing behavior of users to determine the importance of pages based on both the number and quality of backlinks. It also summarizes some implementations and applications of PageRank, as well as limitations and areas for further refinement.

1. The PageRank Citation Ranking: Bringing Order to the Web Larry Page etc. Stanford University Presented by Guoqiang Su & Wei Li

20. Evaluation I

21. Evaluation II